Port Adelaide defender Esava Ratugolea is facing 12 months on the sidelines after suffering a sickening knee injury in the Power's 11.12 (78) to 6.16 (52) defeat to Collingwood.
Ratugolea was rushed to hospital on Saturday night and will undergo immediate surgery on a suspected ruptured patella tendon.
The 27-year-old was taken off on a stretcher after badly hurting his knee in a marking contest late in the third quarter.
It was a nightmare third term for the Power, who had already lost Jack Lukosius to a calf injury.
Utility Ewan Mackinlay also hobbled from the field with a suspected medial sprain in his knee while Ratugolea was being treated by medicos.
Ratugolea, a former Geelong tall, had enjoyed a stellar game with 10 intercept possessions before hurting himself.
